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A Case Study of an NGOs Ecotourism Efforts: Findings Based on a Survey of Visitors to its Tropical Nature Reserve
Tisdell, Clement A., (2010)
Does an Elected Leader Have Incentives to Provide Public Goods with Future Returns? –Evidence from China
Shu, Youhua, (2012)
Animal Health Economics. What Can It Do? What Are the Big Questions?
POPULATION AND ENVIRONMENT
Beale, Calvin L.,
Agricultural communities : economic and social setting
Beale, Calvin L., (1983)
Características demográficas de los indígenas de los Estados unidos de América
Beale, Calvin L., (1955)